Test Review Part 1b

Does the following diagram represent dilation?

• Yes, with a scale factor of 2

• No, sides are not proportional

• No, sides are proportional

• Yes, with a scale factor of 1/2

How do you write the algebraic notation when the scale factor is 3?

• (x, y) goes to (1/3x, 1/3y)
• (x, y) goes to (-3x, -3y)
• (x, y) goes to (x + 3, y + 3)
• (x, y) goes to (3x, 3y)

Does the image show a Dilation and what is the scale factor?

• Yes; k = 2

• Yes; k = 1/2

• No, it's a translation.

• No, it's a reflection.

What is the formula for scale factor?

In similar Polygons, corresponding sides are ___ and corresponding angles are ___. (Fill in the blanks)

• congruent, proportional 
• proportional, congruent 
• congruent, congruent
• proportional, proportional

Sides in similar figures must be proportional.  

• True
• False 

Corresponding angles in similar figures are congruent.

• True

• False

Matching sides are called

• Corresponding Sides
• Corresponding Angles
• The Same
• Congruent Sides

What is true about the shape and size of similar figures?

• Same shape and same size
• Same shape and not the same size
• Different shape and same size
• Different shape and not the same size

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.
• It's an enlargement; the scale factor is 2.
• It's an enlargement; the scale factor is 1/2.
• It's a reduction; the scale factor is 1/2.